HQMaster 10x25 Compact Binoculars with Low Night Vision Large Eyepiece Waterproof Telescope Easy Focus for Outdoors Hunting

Specifications: Max.Magnification: 10x Adjust setting: Right eyepiece & Center Objective Lens Diameter: 25mm (FMC broadband coating green) Eyepiece Diameter: 15mm (FMC broadband coating blue) Field of view: 273ft/1000yds Wide angle of view: 7.5° Exit-pupil distance:20mm Exit-pupil diameter:5.8mm Prisma: bak4 Product Size: 2.95*4.05*3.93 inches Using steps: 1. Set the right eyepiece to adjust focusing and sight on a distant subject. 2. Cover the right front lens with your hand and rotate the focusing wheel in the middle until the image in the left eyepiece appears sharp.Keep both eyes open while you make this adjustment. 3. Now cover the left front lens with your hand and rotate the right eyepiece until the image is sharp. 4. The binoculars have now been adjusted to your eyes. Note the diopter reading of the right eyepiece for future reference. Telescope Maintenance Method: 1. After purchasing a telescope, you must pay attention when using it: Its storage place must be dry, since the film is easy to fall off and the prisma may be fogging or mouldy fter long-term becoming damp. 2. When using, if it is found that there is some dirt or traces on the lens, DO NOT swab with water!The best way is to use swab at home (cotton swab) or soft lint-less cloth to clean, and dip it in some alcohol or gasoline, wipe gently. Better not to use lens wiping cloth to dry clean, it is easy to scratch the lens surface. Package includes: 1 x Telescope 1 x Neckstrap(Length is about 110cm) 1 x Lens Cleaning Cloth(43.3 in) 1 x Carrying Pouch 1 x User Manual